I have a male endler that is the same size as a female. It visually male and I have no doubt but it has no color. It is the same size as the female, all gray but his sexual organ is certainly corresponding to that of a male.
Why can this be?
Should I remove him to not spoil future generations?
Can it be a hybrid?
It was born in my tank and his brothers are normal except one that completely mutual and yellow colors, green and blue, not orange
Thanks

that is good, continue with your reading(the whole website) then come back and tell me what which side of the fence you stood ie the wingei side or the endler side(you should know what i am talking about by now) now act with a passion my Spanish friend.

PS: if you need more explanation after the read, at least it will be shorter...hihi